展开 y_{0}y_{1}y_{2}\vec{i}+(y_{0}+y_{1}+y_{2})n_{0}+y_{2}^2a_{0}

解答

展开

y_{0} y_{1} y_{2} i + (y_{0} + y_{1} + y_{2}) n_{0} + y_{2}^{2} a_{0}

i y_{0} y_{1} y_{2} + n_{0} y_{0} + n_{0} y_{1} + n_{0} y_{2} + a_{0} y_{2}^{2}

求解步骤

y_{0} y_{1} y_{2} i + (y_{0} + y_{1} + y_{2}) n_{0} + y_{2}^{2} a_{0}

= i y_{0} y_{1} y_{2} + n_{0} (y_{0} + y_{1} + y_{2}) + a_{0} y_{2}^{2}

展开

n_{0} (y_{0} + y_{1} + y_{2}) : n_{0} y_{0} + n_{0} y_{1} + n_{0} y_{2}

= i y_{0} y_{1} y_{2} + n_{0} y_{0} + n_{0} y_{1} + n_{0} y_{2} + a_{0} y_{2}^{2}

e x p an d A (14, 7) y B (- 1, - 9)

e x p an d F (- 5, - 2) V (- 5, - 8)

s im pl i f y \frac{a ( 8 + a )}{64 - a}

e x p an d (x - \frac{5 x - 1}{3} = 4 x - \frac{3}{5}) 15

s im pl i f y - 3 (x - \frac{1}{8})